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Is 0.000000560 hectares as big as a Playing Card?

It's about as big as a Playing Card
The size of a Playing Card is about 0.000000560 hectares.
(ISO 216 B8 size)
A single ISO 216 B8-size playing card measures 0.000000560 hectares. Although this size is the most common playing card, many casinos use the smaller "bridge size" card — 0.000000260 hectares smaller.
There's more! See other comparisons to 0.000000560 hectares...